1378038 101年09月13日核正替換頁 六、發明說明： 【發明所屬之技術領域】 [0001] 本發明涉及一種外殼及其製造方法。 【先前技術】 [0002] 一般裝飾性外殼表面之圖案為二維平面圖案，其藉由印 刷或喷塗之方法形成於所述外殼表面。隨著生活水平之 提升，消費者對外殼表面之裝飾效果之要求越來要高， 習知之二維平面圖案已很難滿足消費者對外殼之外觀要 求。 [0003] 為改善外殼表面之裝飾效果，習知之裝飾外殼之方法採 用了三維圖形顯示技術，其使用鐳射全息技術將圖案形 成於外殼上。但鐳射全息技術形成之圖案比較單一，且 成本較高。另一種裝飾外殻之方法係採用移印技術將多 .層圖案形成於外綠表面，每一裝飾層與其它裝飾層之間 以一透明膜間隔，以此使所述外殼表面達到多層圖案疊 加之立體效果。但多層圖案立體疊加之外殼之膜層結構 複雜，使得其在工業化生産中需.要之製程繁多，因此， 製造所述外殼之工時較長，成本較高。 【發明内容】 [0004] 有鑒於此，有必要提供一種結構簡單且具有三維視覺效 果之外殼。 [0005] 另，有必要提供所述具有三維視覺效果之外殼之製造方 法。 [0006] 一種裝飾性外殼，其包括一透明基材、一微透鏡陣列及 1013347876-0 第3頁/共15頁 101年09月13日梭正雜頁 裝飾層’該微透鏡陣列形成於該透明基材之一表面， 該裳飾層形成於該透明基材之與該微透鏡陣列相對之另 一表面，其中該微透鏡陣列之微透鏡為固化之透明油墨 ，所述裝飾層為一裝飾性油墨點陣，所述裝飾性油墨點 陣及所述微透鏡陣列均為等間距矩陣，所述微透鏡陣列 之矩陣間距與所述裝飾性油墨點陣之間距相異，以符號 hi表示所述微透鏡陣列之矩陣間距，以符號^2表示所述 裝飾性油墨點陣之間g，則所述微透鏡陣列之矩陣間距 與所述裝飾性油墨點陣之間距滿足下述之關係：hlxn = h2x(n一 1)或hixn = h2x(n + l)，其中n為4〜300之自 然數。 100071 一種外殼之製造方法，包括以下步驟：提供一透明基材 :將一裝飾性油墨印刷於所述透明基材之一表面，使所 述透明基材表面形成一裝飾層，所述裝飾層為一裝飾性 油墨點陣；及以網版印刷之方式在所述透明基材之與所 述裝飾層相對之另一表面形成一透明油墨之微透鏡陣列 ’所述裝飾性油墨點陣及所述微透鏡陣列均為等間距矩 陣’所述微透鏡陣列之矩陣間距與所述裝飾性油墨點陣 之間距相異，以符號\表示所述微透鏡陣列之矩陣間距 ’以符號h2表示所述裝飾性油墨點陣之間距，則所述微 透鏡陣列之矩陣間距與所述裝飾性油墨點陣之間距滿足 下述之關係：hlxn = h2x(n—1)或 hlxn = h2x(n+l) ’其中η為4〜300之自然數。 [〇〇°83相較習知技術’本發明所述之外殼採用微透鏡陣列使其 表面圖案成像’所述表面圖案之成像隨觀察者之視角之 〇郎13627户·單编號 ΑΟίοι « . _ . _ 1013347876-0 1378038 101年09月13日核正替換頁 改變而發生遷移或變化，以此達到三維之視覺效果；所 述微透鏡陣列採用透明油墨經固化後形成，其製作簡單 ，成本較低。 【實施方式】 [0009] 請參閱圖1，本發明較佳實施方式所述之外殼10包括一透 明基材11、一微透鏡陣列12及一裝飾層13。 [0010] 透明基材11之材質為透明塑膠，如聚碳酸酯 (Polycarbonate，PC)、透明丙烯腈-丁二稀-苯乙烯共 聚物（Acrylonitrile-Butadiene-Styrene，ABS)、 聚曱基丙稀酸曱醋（Poly-methylmethacrylate， PMMA)或聚氯乙稀樹脂（PVC，Polyvinyl chloride)。 透明基材11之厚度為0· 5mm〜2mm。 [0011] 微透鏡陣列12為由透明油墨經網版印刷工藝印刷於透明 基材11之一表面後固化而形成。所述透明油墨為紫外光 固化型油墨，優選為聚氨酯丙烯酸酯類型之紫外光固化 油墨，其含有質量百分比為55%〜90%聚氨酯丙烯酸酯之 預聚物，質量百分比為5%〜10%之紫外光引發劑，以及5% 〜1 0%之添加劑。 [0012] ’每一微透鏡為向外凸起之球體結構，所述球體結構為半 球或球缺，其直徑為0. 2mm〜1. 0mm，高度為0. 04mm〜 0. 4mni。微透鏡陣列12之每一微透鏡相互間隔，且呈規則 之等間距矩陣分布，其行間距與列間距相等。 [0013] 裝飾層1 3為由網版印刷工藝形成之裝飾性油墨點陣層， 其形成於透明基材11上與微透鏡陣列12相對之一表面。 _13627产單編號A0101 第5頁/共15頁 1013347876-0 1378038 101年09月13日按正替换頁 所述裝飾m可以為各種有色之水性或油性之網版印 刷油墨。所述裝飾性油墨點陣之墨點可為圓形其直徑 為0. 25rara〜1. 2ιππ^所述裝飾性油墨點陣之每一墨點相 互間隔’且呈規則之等間距矩陣分布，其行間距與列間 距相等°可以理解的’所述裝飾性油墨點陣之墨點也可 以為三角形、正方形或其它幾何圖形。 [0014] 其中’微透鏡陣列12之矩陣間距與所述裝飾性油墨點陣 之間距相異。喷參閱圖2，若微透鏡陣列12之矩降間距以 符號、表不，所述裝錦層13之裝飾性油墨點陣之間距以 符號’則微透料列12之矩率間距與所述裝飾性 油墨點陣之間距滿足下述之關係：、χη =、❿一；^或1378038 September 13, 101 Nuclear Replacement Page VI. Description of the Invention: [Technical Field of the Invention] [0001] The present invention relates to a casing and a method of manufacturing the same. [Prior Art] [0002] A pattern of a general decorative outer casing surface is a two-dimensional planar pattern formed on the surface of the outer casing by printing or spraying. With the improvement of living standards, consumers are increasingly demanding the decorative effect of the outer surface of the outer casing. The conventional two-dimensional planar pattern has been difficult to meet the consumer's appearance requirements for the outer casing. [0003] In order to improve the decorative effect of the outer casing surface, the conventional method of decorating the outer casing employs a three-dimensional graphic display technique which uses laser holography to form a pattern on the outer casing. However, the pattern formed by laser holography is relatively simple and costly. Another method of decorating the outer casing is to form a multi-layer pattern on the outer green surface by using a pad printing technique, and each decorative layer is spaced apart from the other decorative layers by a transparent film, so that the outer surface of the outer casing reaches a multi-layer pattern superposition. The three-dimensional effect. However, the multi-layer pattern three-dimensionally superimposed outer shell has a complicated film structure, which makes it necessary for various processes in industrial production, and therefore, the manufacturing of the outer casing is long and the cost is high. SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide a housing that is simple in structure and has a three-dimensional visual effect. [0005] In addition, it is necessary to provide a method of manufacturing the outer casing having the three-dimensional visual effect. [0006] A decorative casing comprising a transparent substrate, a microlens array, and 1013347876-0, page 3 of 15 pages, September 13, 101, a shuttle sheet decorative layer, wherein the microlens array is formed a surface of one of the transparent substrates, the skirting layer being formed on the other surface of the transparent substrate opposite to the microlens array, wherein the microlens of the microlens array is a cured transparent ink, and the decorative layer is a decoration An ink dot array, the decorative ink dot matrix and the microlens array are equally spaced matrices, and a matrix pitch of the microlens array is different from a distance between the decorative ink dots, represented by a symbol hi Referring to the matrix spacing of the microlens arrays, the g between the decorative ink dots is represented by the symbol ^2, and the matrix pitch of the microlens array and the distance between the decorative ink dots satisfy the following relationship: hlxn = h2x(n-1) or hixn = h2x(n + l), where n is a natural number from 4 to 300. 100071 A method of manufacturing a casing, comprising the steps of: providing a transparent substrate: printing a decorative ink on a surface of the transparent substrate to form a decorative layer on the surface of the transparent substrate, wherein the decorative layer is a decorative ink dot matrix; and a microlens array forming a transparent ink on the other surface of the transparent substrate opposite to the decorative layer by screen printing, the decorative ink dot matrix and the The microlens arrays are equally spaced matrices. The matrix pitch of the microlens array is different from the distance between the decorative ink dots, and the symbol \ indicates the matrix pitch of the microlens array. The decoration is represented by the symbol h2. The distance between the matrix of the ink dots is such that the distance between the matrix pitch of the microlens array and the decorative ink dot matrix satisfies the following relationship: hlxn = h2x(n-1) or hlxn = h2x(n+l)' Where η is a natural number from 4 to 300. [〇〇°83 compared to the prior art] The outer casing of the present invention uses a microlens array to image its surface pattern. The imaging of the surface pattern is based on the observer's perspective. 13627 households. Single number ΑΟίοι « . _ . _ 1013347876-0 1378038 On September 13, 101, the nuclear replacement page changes and migrates or changes to achieve a three-dimensional visual effect; the microlens array is formed by curing with a transparent ink, which is simple to manufacture and cost. Lower. [Embodiment] Referring to Figure 1, a housing 10 according to a preferred embodiment of the present invention includes a transparent substrate 11, a microlens array 12, and a decorative layer 13. [0010] The material of the transparent substrate 11 is a transparent plastic, such as polycarbonate (Polycarbonate, PC), transparent acrylonitrile-butadiene-Styrene (ABS), polyacrylonitrile Poly-methylmethacrylate (PMMA) or polyvinyl chloride (PVC, Polyvinyl chloride). The thickness of the transparent substrate 11 is 0·5 mm to 2 mm. [0011] The microlens array 12 is formed by printing a transparent ink on a surface of a transparent substrate 11 by a screen printing process. The transparent ink is an ultraviolet curable ink, preferably a urethane acrylate type ultraviolet curable ink containing a prepolymer having a mass percentage of 55% to 90% urethane acrylate, and the mass percentage is 5% to 10%. UV photoinitiator, and 5% to 10% additive. 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。 。. Each of the microlenses of the microlens array 12 is spaced apart from each other and is arranged in a regular equidistant matrix with a row spacing equal to the column spacing. [0013] The decorative layer 13 is a decorative ink dot layer formed by a screen printing process, which is formed on one surface of the transparent substrate 11 opposite to the microlens array 12. _13627Bill No. A0101 Page 5 of 15 1013347876-0 1378038 September 13th, 2011 According to the replacement page, the decoration m can be a variety of colored water-based or oil-based screen printing inks. The dot of the decorative ink dot matrix may be a circle having a diameter of 0. 25rara~1. 2ιππ^ each ink dot of the decorative ink dot matrix is spaced apart from each other and arranged in a regular equidistant matrix. The line spacing is equal to the column spacing. It can be understood that the ink dots of the decorative ink dot matrix can also be triangular, square or other geometric figures. [0014] wherein the matrix pitch of the microlens array 12 is different from the distance between the decorative ink dots. Referring to FIG. 2, if the moment drop pitch of the microlens array 12 is symbolized or not, the distance between the decorative ink dots of the photographic layer 13 is represented by the symbol 'the moment interval of the micro-transmissive column 12 and the The distance between the decorative ink lattices satisfies the following relationship: χη =, ❿一; ^ or
Vn = h2x(n + 1)，其中…〜3〇〇之自丄 [0015] 微透鏡陣列12之微錢與所述裝飾層此裝飾性油墨點 陣之墨點在透明基材U表面之垂直投影可在至少^部 之投影區域由重合逐漸過渡到錯開，又由錯開逐漸過渡 到重&。⑼述微透鏡與所述墨點由重合逐漸過渡到错開 、又由錯開逐漸過渡到重合之每—投影區域對應之裝飾 性油墨點陣在微透鏡陣列12之成像下可實現視覺上之 透鏡成像效果°當所述微透鏡之焦距大於透明基材丨丨之 厚度，則所述墨點位於所述微透鏡之一倍焦距以内，此 時，所述裝飾性油墨點陣在微透鏡陣列12之成像下，可 在視覺上實現所述裝飾性油墨點陣下沉於透明基材11下 方且具有墨點會聚之成像效果。當透明基材11之厚度大 於所述微透鏡之一倍焦距且小於所述微透鏡之二倍焦距 ，則所述墨點位於所述微透鏡之一倍焦距以外、二倍焦 〇9613627产單编號 A0101 第6頁/共15頁 1013347876-0 1378038 __ 101年09月13日修正替換頁 距以内，此時，所述裝飾性油墨點陣在微透鏡陣列以之 成像下，可在視覺上實現所述裝飾性油墨點陣突出於透 月基材11上方’具有墨點會聚之成像效果。當透明基材 11之厚度大於所述微透鏡之二倍焦距，則所述墨點位於 、’〔微透鏡之—倍焦距以外，此時，所述裝飾性油墨點 陣在微透鏡陣歹川之成像下，可在視覺上實現所述裝飾 • 性油墨科突出於透明基材H上方，具有墨點分散之成 像效果。 剛料，當使用者觀察視角偏移時，在視覺上產生之成像 亦隨之發生偏移，從而達到3D立體顯現效果。 剛料閱圖3，可以理解的，本發明另-實施方式所述之外 咸20與外殼10相似，其包括透明基材1卜微透鏡陣列12 及裝飾層U，其進一步還包括一底色層14及1護層15 底色層14可為一油墨層，也可以為樹脂漆層或一裝飾 .性塑膠薄膜’其_色為能襯托裝飾層13為宜。底色層14 形成於裝飾層13之表面。保護層㈣―透明樹於層其 折射率低於所顿透鏡之折㈣，其魏高_=微透 • ’ Μα所賴透鏡磨損。 [_本發明較佳實施方式所述之外殼20製造方法包括如下所 述之步驟。 [_提供-透明基#u，透明基材u之材質為透明塑膠，如 透月聚碳酸Sg(p〇lycarb〇nate，pc)、透明内稀猜_丁 二烯-笨乙烯共聚物 (ACryl〇nitr%ile-Butadiene-Sl;yrene , ABs)、聚甲 09613627^單编號 A0101 第7頁/共15頁 1013347876-0 1378038 101年09月13日核正 基丙稀酸曱g 旨（Poly-methylmethacrylate，PMMA)或 聚氯乙稀樹脂（PVC，Polyvinyl chloride)，其厚度為 0. 5rara〜2ram 〇 [0020] 將一裝飾性油墨藉由網版印刷之方式印刷於透明基材11 之一表面’使透明基材11表面形成一呈等間距矩陣分布 之裝飾性油墨點陣，從而形成裝飾層13。所述裝飾性油 墨可以為各種有色之水性或油性之網版印刷油墨。所述 裝飾性油墨點陣之墨點可為圓形，其直徑為〇 25mm〜 1. 2mm。所述裝飾性油墨點陣之墨點也可以為三角形、正 方形或其它幾何圖形。 [0021] 在透明基材11上形成一底色層14。底色層可為油墨層 或樹脂漆，其可藉由喷塗、網版印刷或熱轉印方法塗覆 於透明基材11印刷有裝飾層13之一面而形成《底色層14 也可為裝飾性塑膠薄膜，其可採用熱壓貼合之方式形成 於透明基材11印刷有裝倚性油墨點陣_之一面，.也可採用 粘結劑而貼合於透明基材11印刷有裝飾性油墨點陣之一 面。 [0022]採用網版印刷工藝，在透明基材11上與裝飾層13相對之 一表面形成一透明油墨之微透鏡陣列12。形成微透鏡陣 列12之步驟包括：提供一網板，所述網板上形成有呈等 間距矩陣分布之多個網孔；將一透明之紫外光固化型油 墨均勻塗覆於所述網板上，所述紫外光固化型油墨附著 所述網孔中；將透明基材11置於所述網板下方，且與裝 飾性油墨點陣相對之一面面向所述網板；採用一刮墨刀 勻速到過所述網板，迫使附著於所述網孔中之油墨呈液 09613627*^早编號A0101 第8頁/共15頁 1013347876-0 上378038 _ •101年.09月13日核正替換頁 滴狀滴落於裝飾透明基材11與裝飾性油 墨點陣相對之表 面上而形成一油墨陣列；利用紫外光照射所述裝飾透明 基材11紫外光固化型油墨之表面，使所述油墨陣列固化 ’固化後’所述油墨陣列之墨點將保持滴落於裝飾透明 基材llB^之半球狀或球缺狀，以此形成所述之微透鏡陣 列12。所述透明油墨為紫外光固化型油墨，優選為聚氨 ‘ 6§丙烤酸賴型之紫外光固化油墨，其含有質量百分比 ' 為55/°〜9〇%聚氨s旨丙烯酸酯之預聚物，質量百分比為5% l〇/e之紫外光引發劑’以及5%〜1〇%之其它添加劑。微 透鏡陣列12之矩陣間距與所述裝飾性油 墨點陣之間距相 異’使知微透鏡陣列12之部分微透鏡在透明基材U印刷 有裝飾性油墨點陣之-面上垂直投影與所述裝飾性油墨 2陣之。ρ分墨點疊合’即選取一定區域’微透鏡陣列^ 2 之垂直投影與所述裝飾性油墨點陣之墨點先由重合逐漸 過/又到錯開，又由錯開逐漸過渡到重合◊所述微透鏡與 所述墨點由重合逐漸過渡到錯開、又由錯開逐漸過渡到 重合之每一區域對應之裝飾性油墨點陣在微透鏡陣列12 之成像下’可實現視覺上之透鏡成像效果。 ._]彳以理解的，所述之外殼之製造方法還可以包括一在微 透鏡陣列12表面塗覆一保護詹15之步驟。保護層15為透 明樹麟，其折射率小於麟微錢之折射率。 _]綜上所述’本發明符合發明專利要件，爰依法提出專利 申請ym ’以上所述者僅為本發明之較佳實施例，本發 明之範圍幷不以上述實施例為限，舉凡熟悉本案技藝之 人士援依本發明之精神所作之等效修飾或變化，皆應涵 09613627#單編號删1 第9頁/共15頁 1013347876-0 1378038 -- 101年09月13日修正替换頁 蓋於以下申請專利範圍内。 【圖式簡單說明】 [0025] 圖1係本發明較佳實施方式所述之外殼之剖面示意圖。 [0026] 圖2係本發明較佳實施方式所述之外殼之微透鏡陣列與裝 飾油墨點陣一局部區域之排列示意圖。 [0027] 圖3係本發明另一實施方式所述之外殼之剖面示意圖。 【主要元件符號說明】 [0028] (本發明） [0029] 外殼：10 [0030] 透明基材：11 [0031] 微透鏡陣列：12 [0032] 裝飾層：13 [0033] 底色層：14 [0034] 保護層：15 09613627^單编號 A〇101 第10頁/共15頁 1013347876-0Vn = h2x(n + 1), where ...~3〇〇[0015] The micro-lens of the microlens array 12 and the decorative layer of the decorative ink dot matrix are perpendicular to the surface of the transparent substrate U The projection can be gradually transitioned from being coincident to staggered in at least the projection area of the portion, and gradually transitioning from the staggered to the heavy & (9) The microlens and the ink dot are gradually transitioned to the staggered transition, and the transition from the staggered transition to the coincidence. The decorative ink dot corresponding to the projection area can realize the visual lens under the imaging of the microlens array 12. Imaging effect ° When the focal length of the microlens is greater than the thickness of the transparent substrate ,, the ink dot is located within one of the focal lengths of the microlens, at which time the decorative ink dot matrix is in the microlens array 12 Under the imaging, the decorative ink dot array can be visually realized to sink below the transparent substrate 11 and have an image forming effect of ink dot convergence. When the thickness of the transparent substrate 11 is greater than a focal length of the microlens and less than twice the focal length of the microlens, the ink dot is located outside the focal length of the microlens, and the double focal length is 9613627. No. A0101 Page 6 of 15 1013347876-0 1378038 __ Modified on September 13, 2011, within the replacement page spacing, at this time, the decorative ink dot matrix can be visually imaged by the microlens array. The decorative ink dot matrix is protruded above the moon-permeable substrate 11 to have an image forming effect of ink dot convergence. When the thickness of the transparent substrate 11 is greater than twice the focal length of the microlens, the ink dot is located at, [[the microlens is beyond the focal length, at this time, the decorative ink dot matrix is in the microlens array Under the imaging, the decorative ink ink can be visually realized to protrude above the transparent substrate H, and has an image dispersing effect. It is just that when the user observes the angle of view shift, the visually generated image is also shifted, thereby achieving a 3D stereoscopic effect. As can be seen from Fig. 3, it can be understood that the outer salt 20 of the present invention is similar to the outer casing 10, and includes a transparent substrate 1 and a microlens array 12 and a decorative layer U, which further includes a ground color. Layer 14 and 1 cover layer 15 The base layer 14 may be an ink layer, or may be a resin paint layer or a decorative plastic film, the color of which is suitable for setting the decorative layer 13. The under color layer 14 is formed on the surface of the decorative layer 13. Protective layer (4) - The transparency of the layer in the layer is lower than that of the lens (4), and its height is _ = micro-transparent. [The method of manufacturing the outer casing 20 according to the preferred embodiment of the present invention includes the steps as described below. [_provide-transparent base #u, transparent substrate u is made of transparent plastic, such as transglutinated Sg (p〇lycarb〇nate, pc), transparent inner quiz - butadiene - stupid ethylene copolymer (ACryl 〇nitr%ile-Butadiene-Sl;yrene, ABs), polymethyl 09613627^single number A0101 Page 7 of 15 1013347876-0 1378038 September 13, 1999 Nuclear acrylate 曱g Purpose (Poly- Methylmethacrylate (PMMA) or polyvinyl chloride resin (PVC, Polyvinyl chloride) having a thickness of 0. 5rara~2ram 〇 [0020] A decorative ink is printed on one surface of the transparent substrate 11 by screen printing. 'The surface of the transparent substrate 11 is formed with a decorative ink dot array of an equidistant matrix distribution to form the decorative layer 13. The decorative ink can be a variety of colored aqueous or oily screen printing inks. The dots of the decorative ink dot matrix may be circular and have a diameter of 〇 25 mm to 1. 2 mm. The dots of the decorative ink dot matrix may also be triangular, square or other geometric figures. [0021] A undercoat layer 14 is formed on the transparent substrate 11. The undercoat layer may be an ink layer or a resin lacquer, which may be applied by spraying, screen printing or thermal transfer method to the transparent substrate 11 and printed on one side of the decorative layer 13 to form the “bottom layer 14 may also be The decorative plastic film can be formed on the transparent substrate 11 by hot pressing bonding, and printed on the transparent substrate 11 to be printed on the transparent substrate 11 with a binder. One side of the ink dot matrix. [0022] A micro-lens array 12 of transparent ink is formed on the surface of the transparent substrate 11 opposite to the decorative layer 13 by a screen printing process. The step of forming the microlens array 12 includes: providing a stencil having a plurality of meshes arranged in an equidistant matrix; and uniformly coating a transparent ultraviolet curable ink on the stencil The ultraviolet curable ink is attached to the mesh; the transparent substrate 11 is placed under the mesh plate, and one side opposite to the decorative ink dot faces the mesh plate; and a doctor blade is used for uniform speed Going to the stencil, forcing the ink to be attached to the mesh to be liquid 09613627*^ early number A0101 page 8/total 15 page 1013347876-0 on 378038 _ • 101 years. September 13th nuclear replacement a droplet is dropped on the surface of the decorative transparent substrate 11 opposite to the decorative ink dot array to form an ink array; the surface of the decorative transparent substrate 11 ultraviolet curing ink is irradiated with ultraviolet light to make the ink After the array is cured 'after curing', the ink dots of the ink array will remain dripped in the hemispherical or spherical shape of the decorative transparent substrate llB, thereby forming the microlens array 12. The transparent ink is a UV-curable ink, preferably a poly-ammonium 6 § propylene-based acid-based UV-curable ink containing a mass percentage of 55/° to 9〇% of polyacrylic acid s. The polymer has a mass percentage of 5% l〇/e of the ultraviolet photoinitiator' and 5% to 1% by weight of other additives. The matrix pitch of the microlens array 12 is different from the distance between the decorative ink dots, so that a part of the microlenses of the microlens array 12 are vertically projected on the surface of the transparent substrate U printed with the decorative ink dot matrix. The decorative ink is in a row. The ρ-distribution point overlaps, that is, selects a certain area. The vertical projection of the microlens array ^ 2 and the ink dot of the decorative ink dot matrix are gradually overlapped and then staggered, and the transition from the staggered to the coincident ◊ The microlens and the ink dot are gradually transitioned to the staggered transition, and the decorative ink dot corresponding to each region of the coincident transition to the coincidence is imaged by the microlens array 12 to achieve a visual lens imaging effect. . In order to understand, the manufacturing method of the outer casing may further include a step of coating a surface of the microlens array 12 with a protection Jan 15. The protective layer 15 is a transparent tree, and its refractive index is smaller than that of the lining. _] In summary, the present invention meets the requirements of the invention patent, and the patent application ym is filed according to law. The above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the above embodiment, and is familiar to the above. The equivalent modifications or changes made by the person skilled in the art in accordance with the spirit of the present invention shall be in the form of 09613627#单单除1 page 9/15 pages 1013347876-0 1378038 -- revised order cover on September 13, 101 It is within the scope of the following patent application. BRIEF DESCRIPTION OF THE DRAWINGS [0025] FIG. 1 is a schematic cross-sectional view of a casing according to a preferred embodiment of the present invention. 2 is a schematic view showing the arrangement of a microlens array of a casing and a partial region of a decorative ink dot matrix according to a preferred embodiment of the present invention. 3 is a schematic cross-sectional view of a casing according to another embodiment of the present invention. [Main component symbol description] [0028] (Invention) [0029] Housing: 10 [0030] Transparent substrate: 11 [0031] Microlens array: 12 [0032] Decorative layer: 13 [0033] Background layer: 14 [0034] Protective layer: 15 09613627^Single number A〇101 Page 10/Total 15 page 1013347876-0